3
1.
Structure
①
Hub
②
Disk(s)
③
Hexagonal Bolts
④
Washer
⑤
Clamp Bolts
⑥
Spacer
2.
Condition Requirements
Operate in a well-ventilated room with minimum dust and humidity, at an ambient temperature of –30°C~100°C.
Avoid areas where flammable materials, explosives and corrosive liquid or gas may be present. The units are not
suitable for outdoor use for they are not treated with waterproof or anti-corrosive agents.
Do not disassemble the units because both types are assembled to secure their concentricity prior to shipment.
Recommended tolerance for the shafts is h7
h7
h7
h7, except for those mounted to
φ
35
35
35
35 bores (which are primarily prepared for
servo motor shafts).... Tolerance for these shafts must be within 0~+0.010
0~+0.010
0~+0.010
0~+0.010.
3.
Installation
3-1.
Use a clean rag to wipe off dust and oil from the shafts and mounting surface of the coupling.
3-2.
Mount coupling onto shafts after they have been aligned carefully.
The more accurate the initial centering of the coupling, the less stress it will experience during
operations. Wear of the shaft bearing, dents in the mounting surface, changes in conditions affected by
temperature and vibration can affect the life of the coupling as well as your equipment. Center
accurately, especially for high-speed operations.
Angular, parallel, and axial misalignments are interrelated. While you increase one, another will
decrease. Center according to the values in Tables 1 or 2 and Graphs 1 or 3.
Table 1. Allowable Misalignment (Spacer Type)
Table 2. Allowable Misalignment (Single Type)
Model No.
Angular
θ
(deg)
Parallel
ε
(mm)
Axial
γ
(mm)
NES07W
1.4
°
0.05
±
0.24
NES15W
2
°
0.12
±
0.36
NES20W
2
°
0.15
±
0.6
NES30W
2
°
0.18
±
0.8
NES50W
2
°
※
1
0.24(0.18)
±
0.8
NES70W
2
°
0.24
±
0.9
NES100W
2
°
0.25
±
1.1
NES250W
2
°
0.28
±
1.4
NES800W
2
°
0.34
±
1.4
NES1300W
2
°
0.52
±
1.8
NES2000W
2
°
0.56
±
1.4
NES3000W
2
°
0.55
±
1.8
Model No.
Angular
θ
(deg)
Parallel
ε
(mm)
Axial
γ
(mm)
NES07S
0.7
°
0.02
±
0.12
NES15S
1
°
0.02
±
0.18
NES20S
1
°
0.02
±
0.3
NES30S
1
°
0.02
±
0.4
NES50S
1
°
0.02
±
0.4
NES70S
1
°
0.02
±
0.45
NES100S
1
°
0.02
±
0.55
NES250S
1
°
0.02
±
0.7
NES800S
1
°
0.02
±
0.7
NES1300S
1
°
0.02
±
0.9
NES2000S
1
°
0.02
±
0.7
NES3000S
1
°
0.02
±
0.9
Spacer Type
Single type
※
1
Parallel
Allowable Misalignment is 0.18mm for Low inertia
Ｈ
ub.
